Chapter2Troubleshooting Procedures
Satellite U400/Satellite Pro U400/PORTEGE M800
Maintenance Manual
2-41
Check 2
Modem cable may be faulty. Replace it with a new one. If the problem still occurs,
perform Check 3.
Check 3
MDC may be faulty. Replace it with a new one following the steps in Chapter 4. If
the problem still occurs, perform Check 4.
Check 4
Cable between MDC and system board may be faulty. Replace it with a new one
following the instructions in Chapter 4. If the problem still occurs, perform Check
5.
Check 6
System board may be faulty. Replace it with a new one following the instruction in
Chapter 4.
Summary of Contents for Satellite Pro U400 Series
Page 110: ...Test Program for Field Satellite U400 and Satellite Pro U400 Tests and Diagnostics Manual 17 ...
Page 168: ...Replacement Procedures Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual 4 iv ...
Page 276: ...Pin Assignment 36 Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual ...
Page 302: ...Wiring Diagrams F 2 Satellite U400 Satellite Pro U400 PORTEGE M800 Maintenance Manual ...